Error thrown when creating transaction with counter column type

System configuration and information:

Single node Cassandra with Accord transactions enabled running on docker

Built from commit: a7cd114435704b988c81f47ef53d0bfd6441f38b

CQLSH: [cqlsh 6.2.0 | Cassandra 5.0-alpha2-SNAPSHOT | CQL spec 3.4.7 | Native protocol v5]

Steps to reproduce in CQLSH:

CREATE KEYSPACE accord WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}  AND durable_writes = true;

CREATE TABLE accord.accounts (
    partition_key text,
    account_id int,
    balance counter,
    PRIMARY KEY (partition_key, account_id)
) WITH CLUSTERING ORDER BY (account_id ASC)

BEGIN TRANSACTION UPDATE accord.accounts SET balance = balance + 1000 WHERE partition_key = 'default' AND account_id = 1; COMMIT TRANSACTION;

at this point the row is correctly inserted

bug happens after executing the following statement:

I was not able to update the `balance` counter column. I expected to be able to update the `balance` column to 2000.

BEGIN TRANSACTION LET row = (SELECT * FROM accord.accounts WHERE partition_key = 'default' AND account_id = 1); SELECT row.balance; UPDATE accord.accounts SET balance = balance + 1000 WHERE partition_key = 'default' AND account_id = 1; COMMIT TRANSACTION;

Bug / Error:
======================================================================

Traceback (most recent call last):
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 755, in recv_results_rows
    self.parsed_rows = [
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 756, in <listcomp>
    tuple(ctype.from_binary(val, protocol_version)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 756, in <genexpr>
    tuple(ctype.from_binary(val, protocol_version)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py", line 312, in from_binary
    return cls.deserialize(byts, protocol_version)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py", line 550, in deserialize
    return int64_unpack(byts)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/marshal.py", line 22, in <lambda>
    unpack = lambda s: packer.unpack(s)[0]
struct.error: unpack requires a buffer of 8 bytes

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 763, in recv_results_rows
    self.column_types[i].from_binary(row[i], protocol_version)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py", line 312, in from_binary
    return cls.deserialize(byts, protocol_version)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py", line 550, in deserialize
    return int64_unpack(byts)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/marshal.py", line 22, in <lambda>
    unpack = lambda s: packer.unpack(s)[0]
struct.error: unpack requires a buffer of 8 bytes

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/cassandra/bin/../pylib/cqlshlib/cqlshmain.py", line 987, in perform_simple_statement
    result = future.result()
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cluster.py", line 4894, in result
    raise self._final_exception
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/connection.py", line 1199, in process_msg
    response = decoder(header.version, self.user_type_map, stream_id,
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 1196, in decode_message
    msg = msg_class.recv_body(body, protocol_version, user_type_map, result_metadata)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 744, in recv_body
    msg.recv(f, protocol_version, user_type_map, result_metadata)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 730, in recv
    self.recv_results_rows(f, protocol_version, user_type_map, result_metadata)
  File "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py", line 765, in recv_results_rows
    raise DriverException('Failed decoding result column "%s" of type %s: %s' % (self.column_names[i],
cassandra.DriverException: Failed decoding result column "row.balance" of type counter: unpack requires a buffer of 8 bytes

This was found while testing Accord transactions with henrik.ingo and team.